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• lavc/vaapi_encode : Don't return error if the underlying driver doesn't support B...

  6 février 2018, par Haihao Xiang

  lavc/vaapi_encode : Don't return error if the underlying driver doesn't support B frames
  The underlying driver need not support B frames - since they are enabled
  
  by default for some codecs, it is better to disable them rather than
  
  returning an error in this case.  This makes the default settings usable
  
  for low-power encoding on Intel platforms.
  Signed-off-by : Haihao Xiang <haihao.xiang@intel.com>
  
  Signed-off-by : Mark Thompson <sw@jkqxz.net>
  

  • [DH] libavcodec/vaapi_encode.c

• 3 million downloads for Piwik Analytics

  11 janvier 2017, par Matthieu Aubry — Community

  A testament to the power of our mission statement…

  “To create, as a community, the leading international open source digital analytics platform, that gives every user full control of their data.”

  … Piwik has been downloaded more than 3 million times !

  

  Piwik is the most popular open analytics platform

  Piwik is the number one most popular open analytics platform, used on more than 1 million websites in 200 different countries, and the 7th overall most popular analytics tool.

  Together we can make Piwik even better !

  Piwik is a community project. We are so proud of what we have created and would love your help too ! Help us by filling in our community survey (takes just 5 minutes !), by getting involved or becoming a sponsor.

  Thank you so much for using Piwik and respecting privacy while keeping control of your data.

  Happy Analytics !

• Returning a success or failure from ffmpeg

  16 mars 2014, par user3331834

  I have some code executed in PHP after meeting some criteria through if/then statements which looks something like this :

  if(in_array($ext,$video)&&($ext!=="mp4")){
  
      exec("ffmpeg -i ".$fileName.".".$ext." -s 640x360 ".$fileName.".mp4");
  
      /*
  
      if(successful){
  
          unlink($fileName.$ext);
  
          $status="Video entry approved. File converted.";
  
      }
  
      */
  
  }

  As you can see, the issue I'm having is trying to figure out what should go in place of if(successful). The point of this section of the code is to check the files extension against an array of known extensions that are in video format, and that aren't already in the mp4 format. If it passes this check, ffmpeg should run and convert to mp4.

  So a few questions here. Firstly, how can I return a status to tell me if it is converting, succeeded, or failed ? Secondly, how can this be run asynchronously ? That is, if I wanted to convert multiple files, would I be able to do so ? Would I be able to limit ffmpeg to ensure it does not take up all of my server's processing power and inadvertently bring the site to a grinding halt ?

  Or is there a better way to go about converting files than this ? I'm pretty sure my method must be crude.

  EDIT : In addition to this, how does one run ffmpeg in the background, so that the page can be closed, and/or another instance from the same page can be started up by the user for multiple simultaneous conversions ? Is it possible to include a real-time progress status of each conversion ?